多固废协同强化混凝土梁和柱力学性能试验

Experiment on Mechanical Properties of Multi-solid Waste Synergistic Reinforced Concrete Beams and Columns

为明确多固废协同强化混凝土梁的抗弯性能和柱的轴心抗压性能,设计制作了6根多固废协同强化混凝土梁和6根多固废协同强化混凝土柱,得到了不同配筋率对其极限承载力、混凝土和钢筋应变的影响规律。结果表明:当配筋率从0.97%增大到1.62%时,试验梁承载力提高了45.59%;当配筋率从1.13%增大到2.01%时,试验柱承载力提高了11.57%。依据《混凝土结构设计规范》中相关承载力计算公式,引入多固废混凝土材料影响系数k1、k2(k1=1.18、k2=0.798),其计算值与试验值比较吻合。试验结果为多固废协同强化混凝土的工程应用提供了试验依据。

In order to clarify the flexural performance of multi-solid waste synergistic reinforced concrete beams and the axial compressive performance of columns,6multi-solid waste synergistic reinforced concrete beams and 6multi-solid waste synergistic reinforced concrete columns were designed and fabricated.The influence law of different reinforcements rate on its ultimate bearing capacity,concrete and steel strain were obtained.The results show that,when the reinforcement ratio increases from 0.97%to 1.62%,the bearing capacity of the test beam increases by 45.59%.When the reinforcement ratio increases from 1.13%to 2.01%,the bearing capacity of the test column increases by 11.57%.According to the relevant bearing capacity calculation formula in the"Code for Design of Concrete Structures",the influence coefficients k1and k2of multi-solid waste concrete materials are introduced(k1=1.18,k2=0.798),and the calculated values are in good agreement with the experimental values.The test results provide an experimental basis for the engineering application of multi-solid waste synergistic reinforced concrete.